<span>13.2 gallons=49.9 liters
the gas is the octan C8H18
the combustion of Octan equation is
C8H18 + 25/2 O2-------------------> 8CO2 + 9 H2O
1mole 8 moles
n(C8H18)=a n(CO2)=b
so
1 mole/a = 8moles /b
and b= 8molesx a
we must find the value of a, molar volume of a gas is v= 22.4l/mol=V/a, so a=V/v= 49.9/22.4= 2.23 moles
and b=8 x a=8x 2.23=17.85 moles
M(CO2)=m(CO2)/n(CO2)====> m=n x M=17.85 * (12+2x16)= 785.4 g
m(CO2)=785.4g = 1.57 pound</span>
Day 1:
5 haircuts @ $25.75 = $128.75
3 Color treatments @ $40.50= $121.5
Total =$250.25 per day
$250.25 x 6 days =$1,501.50
Answer:
x = 14.3
Step-by-step explanation:
To find one of the sides, we can use the pythagorean theorem:
a² + b² = c²
a² = c² - b²
a = √c² -b²
a = √(20)² -( 14)²
a = 14.3
Well your line travels parallel to the y axis. What's perpindicular to the y axis? The x axis. So all lines perpindicular to the line traveling vertically through (4, 0) are parallel to the x axis. Now we need to find the intercept of this line, which they give you as (-2, 3).
A horizontal line that passes through -2, 3? We can put this into an equation and see what happens.
y - y1 = m(x - x1)
y - 3 = 0(x - (-2))
y - 3 = 0
y = 3
Very wrong. Not a random selection, only men when you want all students, if they play at school then they probably dont play outside or other way around, biased selection, etc.
